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describe :hash_replace, :shared => true do
it "replaces the contents of self with other" do
h = new_hash(:a => 1, :b => 2)
h.send(@method, :c => -1, :d => -2).should equal(h)
h.should == new_hash(:c => -1, :d => -2)
end
it "tries to convert the passed argument to a hash using #to_hash" do
obj = mock('{1=>2,3=>4}')
obj.should_receive(:to_hash).and_return(new_hash(1 => 2, 3 => 4))
h = new_hash
h.send(@method, obj)
h.should == new_hash(1 => 2, 3 => 4)
end
it "calls to_hash on hash subclasses" do
h = new_hash
h.send(@method, HashSpecs::ToHashHash[1 => 2])
h.should == new_hash(1 => 2)
end
it "does not transfer default values" do
hash_a = new_hash
hash_b = new_hash 5
hash_a.send(@method, hash_b)
hash_a.default.should == 5
hash_a = new_hash
hash_b = new_hash { |h, k| k * 2 }
hash_a.send(@method, hash_b)
hash_a.default(5).should == 10
hash_a = new_hash { |h, k| k * 5 }
hash_b = new_hash(lambda { raise "Should not invoke lambda" })
hash_a.send(@method, hash_b)
hash_a.default.should == hash_b.default
end
ruby_version_is ""..."1.9" do
it "raises a RuntimeError if called on a frozen instance that is modified" do
lambda do
HashSpecs.frozen_hash.send(@method, HashSpecs.empty_frozen_hash)
end.should raise_error(TypeError)
end
ruby_bug "#1571, [ruby-core:23714]", "1.8.8" do
it "raises a RuntimeError if called on a frozen instance that would not be modified" do
lambda do
HashSpecs.frozen_hash.send(@method, HashSpecs.frozen_hash)
end.should raise_error(TypeError)
end
end
end
ruby_version_is "1.9" do
it "raises a RuntimeError if called on a frozen instance that is modified" do
lambda do
HashSpecs.frozen_hash.send(@method, HashSpecs.frozen_hash)
end.should raise_error(RuntimeError)
end
it "raises a RuntimeError if called on a frozen instance that would not be modified" do
lambda do
HashSpecs.frozen_hash.send(@method, HashSpecs.empty_frozen_hash)
end.should raise_error(RuntimeError)
end
end
end
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